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Finding the Fourth Proportional to 3,645.54, 5,468.31 and 2,916.54

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Solution

The fourth proportional to 3,645.54, 5,468.31 and 2,916.54 is: 4,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,645.54 : 5,468.31 = 2,916.54 : x
  2. Step 2: Convert to fraction form
    3,645.54/5,468.31 = 2,916.54/x
  3. Step 3: Cross multiply
    3,645.54x = 5,468.31 × 2,916.54
  4. Step 4: Simplify right side
    3,645.54x = 15,948,544.85
  5. Step 5: Solve for x
    x = 15,948,544.85/3,645.54
  6. Step 6: Final answer
    x = 4,374.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.